Laser bonding of angioplasty balloon catheters

Details Laser bonding of angioplasty balloon catheters Laser bonding of angioplasty balloon catheters

1991-11-29

1993-12-07

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

606194, A61M 2900

Patent

active

052679594

ABSTRACT:
A balloon catheter which is assembled by a process of selectively concentrating laser energy along an annular fusion bond site at contiguous surface portions of a length of catheter tubing and a shaft or neck portion of a dilatation balloon. The laser energy wavelength, and the polymeric materials of the balloon and catheter, are matched for high absorption of the laser energy to minimize conductive heat transfer in axial directions away from the bond site. This minimizes crystallization and stiffening in regions near the bond site, permitting fusion bonds to be located close to the proximal and distal cones of the dilatation balloon while preserving the soft, pliant quality of the cones.

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